Kinds of Changes in Matter

Which of the following undergoes a physical change?

• cutting a potato

• baking a potato

• cooking a potato

• digesting a potato

Which of the following is a physical change in matter?

• filling up a balloon with hot air

• dog ripping up your homework

• a plant collecting sunlight and turning it into food

• taking a glass of water and freezing it by placing in the freezer

Which is an example of physical change

• metal rusting

• water boiling

• paper burning

• silver tarnishing

Which is NOT a clue that could indicate a chemical change?

• change in color

• change in odor

• change in shape

• change in energy

Which of the following is a chemical change?

• cutting

• rusting

• melting

• bending

Which statements is TRUE about changes in matter?

• Chemical changes are not observable

• Chemical changes always produce new substances.

• Physical and chemical changes cannot happen at the same time.

• Physical changes can change both the appearance and composition of an object.

Which of the following is an evidence of a chemical change?

• bubbles

• heat forming

• color change

• all of the above

Which of the following is NOT a chemical change?

• bicycle rusting

• cooking a whole chicken

• salt being mixed with water

• jewelry tarnishing in open air

Which is a change from solid to liquid?

• melting

• freezing

• deposition

• sublimation

Which is a change from gas to solid?

• melting

• freezing

• deposition

• sublimation